Experimental Investigation of Reactive Extraction of Levulinic Acid from Aqueous Solutions

The separation of levulinic acid from aqueous solutions is costly and non-ecofriendly in many cases. The major concerns are the low concentration of levulinic acid in fermentation broths and industrial downstreams. In this study, reactive extraction of levulinic acid from aqueous phase is proposed a...

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Bibliographic Details
Published in:Chemical and Biochemical Engineering Quarterly 2022-01, Vol.35 (4), p.381-390
Main Authors: Kumar, A, Shende, D.Z, Wasewar, K.L
Format: Article
Language:English
Subjects:
aqueous solution
diffusivity
levulinic acid
number of theoretical stages
Phenolphthalein
Phosphates
reactive extraction
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Summary:The separation of levulinic acid from aqueous solutions is costly and non-ecofriendly in many cases. The major concerns are the low concentration of levulinic acid in fermentation broths and industrial downstreams. In this study, reactive extraction of levulinic acid from aqueous phase is proposed and its efficacy was investigated. Various extractants viz. tri-n-butyl phosphate, trioctylamine, and trioctylmethylammonium chloride along with i-octanol as a diluent were used. The extent of separation was investigated and various performance parameters like extraction efficiency, distribution coefficient, equilibrium complexation constant, and loading ratio were estimated. The number of transfer units, diffusivity, and mass transfer considerations were also discussed in the reactive separation system. Finally, the conceptual method was provided for the separation of levulinic acid using efficient reactive separation. Keywords: levulinic acid, reactive extraction, aqueous solution, diffusivity, number of theoretical stages
ISSN:0352-9568
0352-9568
1846-5153
DOI:10.15255/CABEQ.2021.2031